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Add some initial navigation route handlers

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This commit is contained in:
Daniel Clark
2022-12-09 08:58:26 +00:00
parent fdcce769e5
commit 4c8fd3dae4
34 changed files with 403 additions and 343 deletions
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Toolkit.Foundation.Avalonia/Markups/NavigationRouteExtension.cs
+43 -37
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@@ -4,20 +4,21 @@ using Avalonia.Controls.Primitives;
using Avalonia.Data;
using Avalonia.Interactivity;
using Avalonia.Markup.Xaml;
using Mediator;
namespace Toolkit.Foundation.Avalonia
{
public class NavigationRouteExtension : MarkupExtension
{
private static readonly AttachedProperty<object> RouteProperty =
AvaloniaProperty.RegisterAttached<NavigationRouteExtension, Control, object>("Route");
private static readonly AttachedProperty<IMediator> MediatorProperty =
AvaloniaProperty.RegisterAttached<NavigationRouteExtension, Control, IMediator>("Mediator");
private readonly string name;
private readonly Binding? routeBinding;
private readonly Binding? mediatorBinding;
public NavigationRouteExtension(object route, string name)
public NavigationRouteExtension(object mediator, string name)
{
routeBinding = route is Binding toBinding ? toBinding : route.ToBinding();
mediatorBinding = mediator is Binding toBinding ? toBinding : mediator.ToBinding();
this.name = name;
}
@@ -33,50 +34,55 @@ namespace Toolkit.Foundation.Avalonia
{
if (target.TargetObject is TemplatedControl control)
{
if (routeBinding is not null)
if (!TryGetBinding(control, out object? binding))
{
if (!TryGetBinding(control, out object? binding))
void HandleDataContextChanged(object? sender, EventArgs args)
{
void HandleDataContextChanged(object? sender, EventArgs args)
{
if (TryGetBinding(control, out binding))
{
control.Loaded -= HandleLoaded;
control.Bind(RouteProperty, routeBinding);
if (control?.GetValue(RouteProperty) is INavigationRouter router)
{
router.Register(name, control);
control.ClearValue(RouteProperty);
}
}
}
control.DataContextChanged += HandleDataContextChanged;
void HandleLoaded(object? sender, RoutedEventArgs args)
if (TryGetBinding(control, out binding))
{
control.Loaded -= HandleLoaded;
if (TryGetBinding(control, out binding))
if (mediatorBinding is not null)
{
control.Bind(RouteProperty, routeBinding);
if (control?.GetValue(RouteProperty) is INavigationRouter router)
control.Bind(MediatorProperty, mediatorBinding);
if (control.GetValue(MediatorProperty) is IMediator mediator)
{
router.Register(name, control);
control.ClearValue(RouteProperty);
mediator.Send(new NavigationRoute(name, control));
control.ClearValue(MediatorProperty);
}
}
}
control.Loaded += HandleLoaded;
}
else
control.DataContextChanged += HandleDataContextChanged;
void HandleLoaded(object? sender, RoutedEventArgs args)
{
control.Bind(RouteProperty, routeBinding);
if (control?.GetValue(RouteProperty) is INavigationRouter router)
control.Loaded -= HandleLoaded;
if (TryGetBinding(control, out binding))
{
router.Register(name, control);
control.ClearValue(RouteProperty);
if (mediatorBinding is not null)
{
control.Bind(MediatorProperty, mediatorBinding);
if (control.GetValue(MediatorProperty) is IMediator mediator)
{
mediator.Send(new NavigationRoute(name, control));
control.ClearValue(MediatorProperty);
}
}
}
}
control.Loaded += HandleLoaded;
}
else
{
if (mediatorBinding is not null)
{
control.Bind(MediatorProperty, mediatorBinding);
if (control.GetValue(MediatorProperty) is IMediator mediator)
{
mediator.Send(new NavigationRoute(name, control));
control.ClearValue(MediatorProperty);
}
}
}